Question

A condenser is charged to a potential difference of  . It's energy is . If battery is there and the space between plates is filled up with a dielectric medium . Its new energy is

A

B

C

D

Medium

Solution

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Correct option is
D

Given energy =
When battery is connected, across capacitor will be constant.
When dielectric is filled,   increases by  




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Solve any question of Electrostatic Potential and Capacitance with:-

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